docs: def inqtagref(self, tag, ref):
          """Determines if an object identified by its tag and reference
          number belongs to the vgroup.
  
          Args::
  
            tag      tag of the object to check
            ref      reference number of the object to check
  
          Returns::
  
            False (0) if the object does not belong to the vgroup,
            True  (1) otherwise
  
          C library equivalent : Vinqtagref
                                               """
  
          return _C.Vinqtagref(self._id, tag, ref)